TY - JOUR PY - 2022// TI - Effectiveness of hazard control measures by explosion door equipped on environmental test chambers -from results of thermal runaway experiment of lithium-ion secondary battery- JO - Journal of the Japan Society for Safety Engineering A1 - Shimoju, Takashi A1 - Shibagaki, Mitsuo SP - 149 EP - 155 VL - 61 IS - 2 N2 - When the explosion vent opens due to thermal runaway of the lithium-ion secondary battery placed in the environmental test chamber, and the open state is maintained, new hazards may be produced by continuous flame emissions, repeated gas explosions, and toxic gas outflows. This paper proposes a hinged door type explosion vent (explosion door) that opens at a set pressure and closes by its own weight to control these hazards. Next, the hazard control effects of the proposed system is discussed from the results of its operational experiments. === 環境試験槽内に設置されたリチウムイオン2 次電池の熱暴走によって爆発放散口が開口し,開口状態を維持すると,立ち上る炎の継続,ガス爆発の繰返し,有害ガスの流出等に起因して新たなハザードが顕在化する恐れがある.本報文は,まずこれらのハザードを抑制するためにまず設定圧力で開口し,自重で閉口する蝶番ドア式爆発放散口(爆発戸)を提案している.次にその動作実験結果より,本提案システムのハザード抑制効果を考察している.

Language: ja

LA - ja SN - 0570-4480 UR - http://dx.doi.org/10.18943/safety.61.2_149 ID - ref1 ER -